TV Highlights Wednesday

Rory Kinnear (right) and Catherine McCormack head the cast of this new two-part drama based on the fascinating and unsolved mystery of Lord Lucan. In 1974, an endebted and desperate Lord Lucan made a desperate bid to win custody of his children, with fatal consequences. Live UEFA Champions League

RTE Two, 7.30pm

It's the last night of the group games, and RTE present coverage of Napoli v Arsenal as Arsene Wenger's side face some familiar foes in former target Gonzalo Higuain (right) and ex-Liverpool keeper Pepe Reina. Superscrimpers Christmas Cracker

Channel 4, 8.00pm

Mrs Moneypenny (right) and her scrimping team set out to prove that you don't have to break the bank to host a good Christmas and meet a family of landed gentry who are past masters of scrimping.The Tunnel

Sky Atlantic, 9.00pm

In the penultimate episode of the thriller inspired by acclaimed Scandinavian drama 'The Bridge', the police are working frantically to catch the Truth Terrorist after his successes, and things turn nasty for Karl (Stephen Dillane, right).